"Variations du flux de données vu dans les Standard Radiation Environment Monitor"
Paul Buehler (Vienne)


The space radiation environment, consisting of 'trapped' radiation belts, cosmic rays, and solar energetic particles causes
effects such as radiation damage, single-event upsets in electronics, background in detectors, and health hazards to astronauts.
As part of its efforts to analyze the physical environment in space and its effects on space systems and astronauts, ESA has
supported the development of the Standard Radiation Environment Monitor, SREM.

SREM is a particle detector, developed for space applications. It measures high energy electrons and protons with a fair
angular and spectral resolution and provides the host spacecraft with radiation information. At present six SREM units are
operational in space. They cover in a variety of orbits a large range of the near Earth space. In low-Earth orbit on the Proba-1
technology demonstrator, in medium-Earth orbit aboard the GIOVE-B test satellite for ESA's Galileo satellite navigation system,
on the Integral gamma ray observatory whose highly eccentric orbit takes it a maximum 153 000 km from Earth, aboard the
Rosetta comet rendezvous mission in deep space beyond Mars, and on Herschel and Planck around the second Lagrangian
point (L2).

In my presentation I will discuss the space radiation environment as seen through the eyes of SREM.